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2018 Toyota Sequoia electrical problems
moderate
Owners of the 2018 Toyota Sequoia have filed 7 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation.See electrical across all vehicles →
Complaints
7
Recalls
1
Avg fix
$850
When does it fail?
Of the 7 electrical complaints filed for the 2018 Toyota Sequoia,
here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
2 (66.7%)
25-50k
1 (33.3%)
50-75k
0 (0%)
75-100k
0 (0%)
100-125k
0 (0%)
125-150k
0 (0%)
150k+
0 (0%)
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted.
Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits
and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 Toyota Tundra and Sequoia vehicles and 2019 Toyota Avalon and Avalon Hybrid vehicles
If the air bags do not deploy as intended, it can increase the risk of injury in a crash.
Fix: Toyota will notify owners, and dealers will update the software for the air bag ECU, free of charge. The recall began October 26, 2018. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0X. Note: 18V-122 was superseded by this recall. The software remedy also includes the updates to the software for 18V-122.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented
repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall
(it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Service BulletinT-TT-0790-25Aug 2025
Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre-determined traveling distance. It is recommended to disable the PCS and DRCC systems on vehicles that have been modified (ride height, oversized wheels/tires, brush bars, etc.) in a way that potentially disrupts the functionality of these systems. Vehicle owner?s written consent is required before performing the calibrat
TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system.
TSB: Some 2016 ? 2018 model year Toyota vehicles equipped with Entune? Audio (version 01013E), Entune? Audio Plus (version 010156 or 01015C), or Entune? Premium Audio (versions 010171, 010170, or 01017D) may exhibit one or more of the following conditions: ?Head unit reboots at a specific location. ?Abnormal Destination Search app operation. ?Rebooting caused by no songs on the USB-connected iPhone. ?A one-time reboot after ignition is cycled to ACC-ON. ?Audio stays muted after the key is cycled.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting
7 most recent
electrical
· filed 11/22/2017
The vehicle has a malfunction on the rear cross traffic, blind spot monitor and possible adaptive cruise control - at only 30 miles.
electrical
· filed 10/16/2017
Issue: safety features failing at less than 500 miles problem statement: at less than 500 miles the safety sensors ( collision prevention, cruise control adaptable speed, rear cross traffic, blind spot monitor ) are failing repeatedly. Dealer has contacted Toyota for support. No eta at present.
electrical · 2,669 mi
· filed 06/15/2018
I am having a recurrent problem with my 2018 sequoia in that I am consistently getting warning lights and alarms going off for 'brake warning,' rear cross traffic alert, 'blind spot monitor malfunction' and 'front camera malfunction.' it has been in the shop 5 times and they keep saying there are computer gliches and keepnupdating the software over and over again. Toyota sent down a tech from…
electrical · 45,000 mi
· filed 06/09/2021
The contact owns a 2018 Toyota Sequoia. The contact stated while driving at 55 mph, the lane departure and rear cross passing warning light illuminated and the vehicle failed to turn off. The contact took the vehicle to the local dealer to inspect the vehicle however, the mechanic was unable to duplicate the failure. Several months later, the failure recurred. The contact took the vehicle back to…
electrical · 2,700 mi
· filed 03/21/2018
Blind spot monitor malfunction. Rear traffic alert malfunction. Pre collision warning system malfunction. This has been happening since odometer reading of 312 miles. Told by Toyota that a recall was issued and a software update would remedy this. Went today 3/21/18 to have update installed. Within 25 miles of leaving the dealership the warnings and malfunctions we're back on. The software…
electrical
· filed 01/30/2018
Tl* the contact owns a 2018 Toyota sequoia. On several occasions, when the vehicle was started, the adaptive collision warning sensor illuminated. The contact stated that the vehicle was turned off and back on, and the vehicle would reset itself. The failure recurred several times. On several occasions, while driving various speeds with no other vehicles ahead, the auto braking feature…
electrical
· filed 01/02/2018
I purchased this vehicle new from mark miller Toyota on fri dec 29th, left the dealership at 12:10pm with 39 miles on it. Ran a few errands and showed my friends, we went to leave after eating some food and at 45 miles in my odo I got 2 error messages. "blind spot monitor malfunction, visit your dealer" and "rear cross traffic alert malfunction, visit your dealer". I had only put 6 miles on this…
Had electrical trouble with your 2018 Toyota Sequoia?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2018 Toyota Sequoia?
It's a documented issue but not catastrophic. 7 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 7 complaints filed, electrical issues most often appear around 16,790 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2018/Toyota/Sequoia.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.